The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 03, 1989
Filed:
Oct. 14, 1988
Curtis E Bradley, Phoenix, AZ (US);
Other;
Abstract
A thermal liquid pump suitable for use as a fuel injector is described; when used as a fuel injector hypergolic combustion is possible. The pump includes a space or chamber that is connected to a fuel supply source. A check valve admits the fuel from the fuel supply into the chamber wherein an electrical heating coil heats the fluid within the chamber. The fuel confined in the chamber is not permitted to vaporize and the increasing temperature creates increasing pressure through thermal expansion of the fuel. A delivery valve is provided in the chamber that is electrically actuated to open and discharge the pressurized fuel into a combustion space. When an appropriate amount of fuel has been discharged, the delivery valve is closed and additional fuel is admitted to the chamber through the check valve.